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†Planorbifex Pilsbry 1934
urn:lsid:organismnames.com:name:3233778
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†Planorbifex Pilsbry 1934
Pilsbry 1934. Mollusks of the freshwater Pliocene beds of the Kettleman Hills and neighbouring oil-fields, California. Proceedings of the Academy of Natural Sciences of Philadelphia, 86 1934: pp. 541-670